class_docstr: Main class for calculating GageRnR.
docstr: Calculate Sum of Deviations.
docstr_tok: ["Calculate","Sum","of","Deviations","."]
code: def calculate_sum_of_deviations(self):
      """Calculate Sum of Deviations."""
      squares = self.calculate_squares()
      SD = dict()
      for key in squares:
          SD[key] = np.sum(squares[key])
      return SD
  
imports: from enum import Enum
  import numpy
  import math
  import scipy.stats
label_desc: Use image node_id 5 for calling the GageRnR obj's underlying member method code with example usage: obj.calculate_sum_of_deviations() and returns: SD